A tsunami can move hundreds of miles per hour in the open ocean and smash into land with waves as high as 100 feet or more. From the area where the tsunami originates, waves travel outward in all ...
Within 20 minutes, waves of water began to hit the coasts of surrounding islands. In Indonesia's Aceh province in Northern Sumatra, waves reached 167 feet and caused floods for three miles. Following ...
People in high-risk tsunami areas could soon be helped by an early-warning alarm system using sound waves that is being developed by scientists. Mathematicians think they have devised a way of ...